D jet slow idle, Found this... |
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D jet slow idle, Found this... |
bobboinski |
Sep 24 2021, 06:11 PM
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#1
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Member Group: Members Posts: 198 Joined: 23-April 16 From: Petaluma Member No.: 19,929 Region Association: Northern California |
I have been fighting the D jet slow idle on my 1971 1.7. Have checked and rechecked everything. Bought a smoke machine. Bought a new timing light with advance. All new ignition parts. Checked MPS. Checked all sensors with ohm meter. Disassembled and cleaned Distributor. Good compression. So started disconnecting things. When i disconnected and plugged the vacuum retard I was able to adjust a 900 rpm idle with the (finally effective after removing vacuum retard) idle air bleed. So I did a search for "914 vacuum retard" and this link came up. Read the last post. Exactly fits my symptoms. I'm going to try what he describes tomorrow and see what happens. But I'm pretty sure I'm on the right track finally. Thoughts?
https://shoptalkforums.com/viewtopic.php?t=2513 |
emerygt350 |
Sep 26 2021, 05:35 AM
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#2
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Advanced Member Group: Members Posts: 2,145 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
So with it all hooked up you are at 850 but you are getting detonation while driving?
Retard only works when the throttle is closed, so that shouldn't be related. Advance only at partial throttle, so again probably not an issue unless it pings while cruising. Plugs look good right? Not too lean? 93 octane? |
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